Under the senators' plan, most illegal immigrants would be able to apply to become permanent residents -- a crucial first step toward citizenship -- but only after certain border enforcement measures had been accomplished.

Among the plan's new proposals is the creation of a commission of governors, law enforcement officials and community leaders from border states that would assess when border security measures had been completed. A proposal would also require that an exit system be in place for tracking departures of foreigners who entered the country through airports or seaports, before any illegal immigrants could start on a path to citizenship ...

In a parallel effort, a separate group of four senators will introduce a bill this week dealing with another thorny issue that is likely to be addressed in a comprehensive measure: visas for legal immigrants with advanced skills in technology and science. The bill, written primarily by Senator Orrin G. Hatch of Utah, a Republican, and Senator Amy Klobuchar of Minnesota, a Democrat, would nearly double the number of temporary visas, known as an H-1B, available each year to highly skilled immigrants. It would also free up more permanent resident visas, known as green cards, so those immigrants could eventually settle in the United States and go on to become citizens.

Fawn Johnson, correspondent for National Journal, and Louis DeSipio, political science professor at the University of California-Irvine, join The Daily Circuit Tuesday, Jan. 29 to discuss how the politics of immigration reform has changed.